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The accurate knowledge of the thrust vector eccentricity and beam divergence characteristics of Hall thrusters are of significant engineering value for the beneficial integration and successful application of Hall thrusters on spacecraft. For the characteristics of the plume bipolar diffusion due to the annular discharge channel of the Hall thruster, a Gaussian-fitted method for thrust vector deviation angle and beam divergence of Hall thrusters based on dual Faraday probe array planes was propo... 相似文献
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在从事涉水工程设计、规划初期,要进行大量的水文分析计算工作,其中对年径流分析计算时,对无资料或资料缺测的设计流域要进行年径流系列的插补和延长,使得资料系列具有一定代表性和一致性,为此,文中提供了一些年径流资料插补、延长的方法,并通过实例具体说明了不同方法的使用条件,同时指出了在插补、延长过程中需注意的问题。 相似文献
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